研究不同挤压工艺条件对ME20M镁合金组织和力学性能的影响.结果表明:挤压工艺参数的变化对ME20M的晶粒尺寸和组织均匀性具有较大的影响,存在主要第二相Mn单质颗粒吸附Mg12Ce现象,其吸附量随Mn颗粒分布位置的变化而变化,造成Mg12Ce分布不均,成为制约ME20M合金组织性能改善的主要因素之一.主要通过合理控温、控速等挤压工艺控制挤压纤维组织的分布与数量,利用其强化作用实现抗拉强度超过250 MPa、伸长率超过10%型材的工业化生产.
参考文献
| [1] | 潘复生;韩恩厚.高性能变形镁合金及加工技术[M].北京:科学出版社,2007:3-13. |
| [2] | 陈振华.变形镁合金[M].北京:化学工业出版社,2005:21-22. |
| [3] | G. T. Parthiban;N. Palaniswamy;V. Sivan .Effect of manganese addition on anode characteristics of electrolytic magnesium[J].Anti-Corrosion Methods and Materials,2009(2):79-83. |
| [4] | W. B. Lee;Y. M. Yeon;S. B. Jung .Joint properties of friction stir welded AZ31B -H24 magnesium alloy[J].Materials Science and Technology: MST: A publication of the Institute of Metals,2003(6):785-790. |
| [5] | B. L. Mordike .Development of highly creep resistant magnesium alloys[J].Journal of Materials Processing Technology,2001(3):391-394. |
| [6] | S.M. Masoudpanah;R. Mahmudi .The microstructure, tensile, and shear deformation behavior of an AZ31 magnesium alloy after extrusion and equal channel angular pressing[J].Materials & design,2010(7):p.3512. |
| [7] | JIAN Wei-wei,KANG Zhi-xin,LI Yuan-yuan.Effect of hot plastic deformation on microstructure and mechanical property of Mg-Mn-Ce magnesium alloy[J].中国有色金属学会会刊（英文版）,2007(06):1158-1163. |
| [8] | Q. Guo;H.G. Yan;Z.H. Chen .Grain refinement in as-cast AZ80 Mg alloy under large strain deformation[J].Materials Characterization,2007(2):162-167. |
| [9] | Fu Penghuai;Peng Liming;Jiang Haiyan;Chang Jianwei;Zhai Chunquan .Effects of heat treatments on the microstructures and mechanical properties of Mg–3Nd–0.2Zn–0.4Zr (wt.%) alloy[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2008(1/2):183-192. |
| [10] | FATEMI-VARZANEH S M;ZAREI-HANZAKI A;BELADI H .Dynamic recrystallization in AZ31 magnesium alloy[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,2007,456(1/2):52-57. |
| [11] | 石磊,李继文,李永兵,魏世忠.高精度AZ31镁合金薄壁管件等温挤压后的组织与性能[J].热加工工艺,2009(20):42-45. |
| [12] | 刘楚明;朱秀荣;周海涛.镁合金相图集[M].长沙:中南大学出版社,2006:35. |
| [13] | PEZAT M;HBIKA A;DARRIET B .Study of alloys of composition CeMg11V,CeMg11Cr,CeMg11Mn,CeMg11Fe,CeMg11Co and their application to hydrogen storage[J].Materials Research Bulletin,1980,15(01):139-146. |
| [14] | 余琨,黎文献,张世军.Ce对镁及镁合金中晶粒的细化机理[J].稀有金属材料与工程,2005(07):1013-1016. |
| [15] | YAMASHITA T;KELLY P M;CAVALLARO P;HISA M .Effects of age hardening on magnetic and transport properties of Mg-1.3 wt% Ce alloys[J].Acta Materialia,1998,46(09):2977-2981. |
| [16] | Xin Zhang;Dmytro Kevorkov;In-Ho Jung .Phase equilibria on the ternary Mg-Mn-Ce system at the Mg-rich corner[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2009(1/2):420-428. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%